<script setup>
import {
    Edit,
    Delete
} from '@element-plus/icons-vue'
import { ref, onMounted } from 'vue'
const categorys = ref([
    {
        "id": '',
        "categoryName": '',
        "categoryAlias": '',
        "createTime": '',
        "updateTime": ''
    }
])
import { articleCategoryListService, articleCategoryAddService, articleCategoryUpdateService, articleCategoryDeleteService } from '@/api/article'
import { ElMessage, ElMessageBox } from 'element-plus'
const getAllCategoryList = async() => {
    const res = await articleCategoryListService()
    categorys.value = res.data
}
onMounted(() => { // 在组件挂载后获取数据
    getAllCategoryList()
})
//控制添加分类弹窗
const dialogVisible = ref(false)
//存储原始数据
const originalCategory = ref({
    categoryName: '',
    categoryAlias: ''
})
//添加分类数据模型
const categoryModel = ref({
    categoryName: '',
    categoryAlias: ''
})
//添加分类表单校验
const rules = {
    categoryName: [
        { required: true, message: '请输入分类名称', trigger: 'blur' },
    ],
    categoryAlias: [
        { required: true, message: '请输入分类别名', trigger: 'blur' },
    ]
}
// 添加文章分类
const addCategory = async() => {
    await articleCategoryAddService(categoryModel.value)
    ElMessage.success('添加成功')
    getAllCategoryList()
    dialogVisible.value = false
}
// 定义变量，控制弹窗标题
const title = ref('')
// 定义清空弹窗数据
const clearData = () => {
    categoryModel.value.categoryName = ''
    categoryModel.value.categoryAlias = ''
}
// 更新文章分类弹窗数据回显
const updateDialog = (row) => {
    dialogVisible.value = true
    title.value = '编辑分类'
    categoryModel.value.categoryName = row.categoryName
    categoryModel.value.categoryAlias = row.categoryAlias
    categoryModel.value.id = row.id
    // 同时保存原始数据
    Object.assign(originalCategory, { categoryName: row.categoryName, categoryAlias: row.categoryAlias });
}
// 更新文章分类
const updateCategory = async() => {
    // 检查是否有更改
    if (categoryModel.value.categoryName === originalCategory.categoryName &&
        categoryModel.value.categoryAlias === originalCategory.categoryAlias) {
        ElMessage.error('没有做任何修改')
        return // 阻止请求
    }
    await articleCategoryUpdateService(categoryModel.value)
    ElMessage.success('更新成功')
    getAllCategoryList()
    dialogVisible.value = false
}
// 删除文章分类
const deleteCategory = async(row) => {
    ElMessageBox.confirm(
    '你确定要删除吗?',
    '温馨提示',
    {
      confirmButtonText: '确定',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
    .then(async() => {
        await articleCategoryDeleteService(row.id)
        getAllCategoryList()
      ElMessage({
        type: 'success',
        message: '删除成功',
      })
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '取消删除',
      })
    })
}
</script>
<template>
    <el-card class="page-container">
        <template #header>
            <div class="header">
                <span>文章分类</span>
                <div class="extra">
                    <el-button type="primary" @click="dialogVisible = true; title='添加分类'; clearData()">添加分类</el-button>
                </div>
            </div>
        </template>
        <el-table :data="categorys" style="width: 100%">
            <el-table-column label="序号" width="100" type="index" prop="id"> </el-table-column>
            <el-table-column label="分类名称" prop="categoryName"></el-table-column>
            <el-table-column label="分类别名" prop="categoryAlias"></el-table-column>
            <el-table-column label="创建时间" prop="createTime"></el-table-column>
            <el-table-column label="更新时间" prop="updateTime"></el-table-column>
            <el-table-column label="操作" width="100">
                <template #default="{ row }">
                    <el-button :icon="Edit" circle plain type="primary" @click="updateDialog(row)"></el-button>
                    <el-button :icon="Delete" circle plain type="danger" @click="deleteCategory(row)"></el-button>
                </template>
            </el-table-column>
            <template #empty>
                <el-empty description="没有数据" />
            </template>
        </el-table>
        <!-- 添加分类弹窗 -->
        <el-dialog v-model="dialogVisible" :title="title" width="30%">
            <el-form :model="categoryModel" :rules="rules" label-width="100px" style="padding-right: 30px">
                <el-form-item label="分类名称" prop="categoryName">
                    <el-input v-model="categoryModel.categoryName" minlength="1" maxlength="10"></el-input>
                </el-form-item>
                <el-form-item label="分类别名" prop="categoryAlias">
                    <el-input v-model="categoryModel.categoryAlias" minlength="1" maxlength="15"></el-input>
                </el-form-item>
            </el-form>
            <template #footer>
                <span class="dialog-footer">
                    <el-button type="primary" @click="title === '添加分类' ? addCategory() : updateCategory()"> 确认 </el-button>
                    <el-button @click="dialogVisible = false; clearData()">取消</el-button>
                </span>
            </template>
        </el-dialog>
    </el-card>
</template>

<style lang="scss" scoped>
.page-container {
    min-height: 100%;
    box-sizing: border-box;

    .header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}
</style>